Surface temperature loss measuring device



FIG. 1 is a front and bottom-left perspective view of a surface temperature loss measuring device showing my new design;

FIG. 2 is a rear and top-right perspective view thereof;

FIG. 3 is a front and top right perspective view thereof with the detector in an alternative position;

FIG. 4 is a rear and bottom-left perspective view of FIG. 3. 

The ornamental design for a surface temperature loss measuring device, as shown and described. 